Progress Delayed Is Progress Denied

An interesting commentary on whether the web is actually a credible alternative to the App Store (as Apple claims). This point about cross-engine compatibility resonates with me:

Compatibility across [browser] engines is key to developer productivity. To the extent that an engine has more than 10% share (or thereabouts), developers tend to view features it lacks as "not ready". It's therefore possible to deny web developers access to features globally by failing to deliver them at the margin.